Hello, I try to have a list of the layers in an image and to active them one by one. I am using Python-fu (newbie with python) with Gimp 1.2, i am doing this : layers= pdb.gimp_image_get_layers( inImage )[1] activeLayer = pdb.gimp_image_get_layer_by_tattoo( inImage, layers[0] ) pdb.gimp_image_set_active_layer( inImage, activeLayer ) seems wrong because layers[0] activ the background layer but other values in the array index produce "RuntimeError: execution error" Any help welcome, @+ Raymond